OZ1SMB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Denmark Most frequent locator attributed to this token: JO54

Receiver-side FT8 activity involving OZ1SMB, decoded by SO8OO in southeastern Poland. 2,801 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 90 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-14.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 2,801 FT8 messages attributed to OZ1SMB as the transmitting token by decoded message structure across 90 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 60 m (24%) and 20 m (19%). Most decodes (71%) fell within the six-hour window 13:00-19:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -5 dB.

Overview

2,801

Messages attributed

UTC dates decoded

323

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 57 60m · 662 40m · 1,394 20m · 524 10m · 164

First attributed message: 2026-06-07
Last attributed message: 2026-10-14 15:05 UTC

Observed FT8 message patterns

Attributed sample: 2,801 messages
Active dates: 90 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -15 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 228, moderate (-15 to -9 dB) 667, strong (≥ -8 dB) 1,906.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with OZ1SMB in decoded directed-looking exchanges:

DJ1PQ · Fed. Rep. of Germany ×3 DC5IU · Fed. Rep. of Germany ×2 F5PBG · France ×2 DG3YEV · Fed. Rep. of Germany ×2 DG6MA · Fed. Rep. of Germany ×2 DL3HQL · Fed. Rep. of Germany ×2 DL4YDR · Fed. Rep. of Germany ×2 F4HSB · France ×2 G8VJU · England ×2 I8OHQ · Italy ×2 OE9GWV · Austria ×2 RN6LBT · European Russia ×2

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to OZ1SMB

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: JO54 · 1,589 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 892 km (approx.)
Last such locator decoded: 2026-10-14 15:05 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	OZ1SMB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-14 15:03	40m	-3 / -	PA0WDN	- / -	5	Partial capture
10-14 15:01	40m	-4 / -	ON4JPE	- / +4	3	✓ Closing fragment
10-14 14:59	40m	-7 / -4	DL5GSM	-15 / -15	4	✓ Full exchange observed
10-14 14:56	40m	-3 / -	IK8OXO	- / -5	3	✓ Closing fragment
10-14 14:56	40m	-1 / 0	SP5RZL	-4 / -	2	Partial capture
10-14 14:54	40m	-4 / -14	R5ACQ	-9 / +4	4	✓ Full exchange observed
10-14 14:52	40m	-6 / -8	DL7DF	-4 / -21	5	✓ Full exchange observed
10-14 14:47	40m	-3 / -	RA9LL	- / -	5	Partial capture
10-14 14:44	40m	-17 / -	PA0WDN	- / -	5	Partial capture
10-14 14:40	40m	-18 / -	GW8PSJ	- / -7	3	✓ Closing fragment
10-14 14:39	40m	-19 / -	DB1BC	- / -	2	Partial capture
10-14 14:37	40m	-15 / -	DL1KEA	- / -15	3	✓ Closing fragment
10-14 14:09	40m	-16 / -	YC2BUZ	- / -	3	Partial capture
10-14 14:07	40m	-16 / -	DB1IUA	- / -	4	Partial capture
10-14 14:04	40m	-20 / -	PA0WDN	- / -	3	Partial capture
10-14 14:00	40m	-21 / -	OZ9WRH	- / -	5	✓ Closing fragment
10-14 13:56	40m	-16 / -4	DK1XAM	-8 / -	5	✓ Full exchange observed
10-14 13:49	40m	- / +10	DH5IS	-17 / -	3	✓ Closing fragment
10-14 13:47	40m	-18 / -18	OE7KTI	-14 / -5	3	Partial capture
10-14 13:43	40m	-14 / -	M0ABA	- / -	2	✓ Closing fragment
10-14 13:42	40m	-19 / -8	R3UG	-9 / -1	4	✓ Full exchange observed
10-14 13:40	40m	-18 / -	G0LFT	- / -2	2	✓ Closing fragment
10-14 13:38	40m	-19 / -	EC3A	- / -	3	✓ Closing fragment
10-14 13:36	40m	-20 / -8	RU3X	-4 / +2	4	✓ Full exchange observed
10-13 15:46	40m	-14 / -	YO3GJE	- / -	2	Partial capture
10-13 15:44	40m	- / -1	IV3XPP	-6 / -	2	✓ Closing fragment
10-13 15:42	40m	-16 / -3	SP2ADI	+4 / -	3	✓ Closing observed
10-13 15:40	40m	-17 / +2	DF0KK	+4 / -	5	✓ Full exchange observed
10-13 15:29	60m	-9 / -12	DL9CZ	-21 / -12	9	✓ Full exchange observed
10-13 15:25	60m	0 / +6	F5APQ	-21 / -1	3	✓ Full exchange observed
10-13 15:24	60m	-2 / +1	SQ7LQT	0 / +2	4	✓ Full exchange observed
10-13 15:22	60m	-2 / 0	OM3WFH	-6 / -	5	✓ Full exchange observed
10-13 15:19	60m	0 / -4	IU3UQW	-23 / -15	7	✓ Full exchange observed
10-13 11:35	10m	- / +3	CT2FXY	-4 / -	2	✓ Closing fragment
10-13 05:29	80m	-12 / -8	MI0NWA	-11 / -20	4	✓ Full exchange observed
10-13 05:23	80m	-8 / -9	F5PBG	+1 / -5	4	✓ Full exchange observed
10-13 05:20	80m	-8 / -5	F4FSY	-8 / -15	5	✓ Full exchange observed
10-13 05:20	80m	-9 / -14	HG8LXL	+4 / -8	6	✓ Full exchange observed
10-13 05:19	80m	-10 / +4	DF4WQ	-3 / -8	7	✓ Full exchange observed
10-13 05:19	80m	-6 / -2	GM6URC	-20 / -15	4	✓ Full exchange observed
10-13 05:17	80m	-8 / -	SM7TZK	-6 / -12	5	✓ Closing observed
10-13 05:13	60m	+7 / -3	IZ0MIO	-12 / -4	5	✓ Full exchange observed
10-13 05:13	60m	+7 / -	W4CHA	- / -15	2	✓ Closing fragment
10-13 05:11	60m	+7 / -	ES6DO	-18 / +8	4	✓ Closing observed
10-13 05:09	60m	+7 / -	F6HRP	- / -6	3	✓ Closing fragment
10-13 05:08	60m	+10 / -	EA8WU	- / -	2	Partial capture
10-13 05:07	60m	+12 / -1	HB9CEV	-5 / -15	5	✓ Full exchange observed
10-13 05:05	60m	+9 / +6	IK1WGX	-4 / +10	5	✓ Full exchange observed
10-13 05:03	60m	+6 / -	J88IH	- / -15	3	✓ Closing fragment
10-13 04:56	40m	- / -	YO6LM	-10 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m

UTC    dB Audio  Message
145715  -4 2770  IK8OXO OZ1SMB R-05 (x2)
145815  -8 2770  EA1ARJ OZ1SMB JO54
145945 -13  874  OZ1SMB DL5GSM -04
150000  -8 2771  DL5GSM OZ1SMB R-15
150015 -17  872  OZ1SMB DL5GSM RR73
150030  -6 2770  DL5GSM OZ1SMB 73
150100  -8 2771  ON4JPE OZ1SMB JO54 (x3)
150300  -3 2770  PA0WDN OZ1SMB JO54 (x5)

60m

UTC    dB Audio  Message
152530  -2  895  F5APQ OZ1SMB -01
152545 -21 1281  OZ1SMB F5APQ R+06
152600  +1  895  F5APQ OZ1SMB RR73
152630  -5  895  CQ OZ1SMB JO54 (x3)
152945  -4  895  DL9CZ OZ1SMB JO54 (x2)
153100 -20 1434  OZ1SMB DL9CZ -12
153115 -15  895  DL9CZ OZ1SMB R-12
153130 -23 1434  OZ1SMB DL9CZ -12
153145 -13  895  DL9CZ OZ1SMB R-05 (x2)
153230 -21 1434  OZ1SMB DL9CZ RR73
153245  -4  895  DL9CZ OZ1SMB 73

10m

UTC    dB Audio  Message
114845  +4 2972  I3JOA OZ1SMB JO54
115030  +2 2972  SP8MO OZ1SMB JO54
115215  +2 2972  I3JOA OZ1SMB JO54 (x3)
115600  +2 2972  OE2IGP OZ1SMB JO54 (x4)
122045  -2 2913  EA3EAT OZ1SMB JO54 (x2)
093630  -3 2805  DA1TH OZ1SMB JO54
093700  -4 2805  DA2DA OZ1SMB JO54
113530  -5  580  OZ1SMB CT2FXY +03 (x2)

80m

UTC    dB Audio  Message
052200  +3 1316  OZ1SMB HG8LXL R-14
052215  -7 2685  HG8LXL OZ1SMB RR73
052230  +4 1316  OZ1SMB HG8LXL 73
052245  -9 2685  F4FSY OZ1SMB R-15
052300 -12 1590  OZ1SMB F4FSY RR73
052315  -6 2685  F4FSY OZ1SMB 73
052330  +5 2686  OZ1SMB F5PBG IN78
052345  -8 2685  F5PBG OZ1SMB -05
052400  +0 2686  OZ1SMB F5PBG R-09 (x2)
052600 -12 2685  EC3A OZ1SMB JO54
052900  -9  719  OZ1SMB MI0NWA -08
052915 -14 2685  MI0NWA OZ1SMB R-20
052930 -13  719  OZ1SMB MI0NWA RR73
052945 -11 2685  MI0NWA OZ1SMB R-20

20m

UTC    dB Audio  Message
124145  +1 1166  OZ1SMB F1POK -04 (x3)
124345 -14 2986  EA7KLL OZ1SMB JO54
124415 -16 2986  IZ6BYS OZ1SMB JO54 (x3)
124600 -16 2460  OZ1SMB UT4QM R-01
124615  -9 3015  UT4QM OZ1SMB RR73
124930 -11 3015  DG9MAQ OZ1SMB JO54 (x2)
125500  -8 3004  UR5HAN OZ1SMB JO54
125530  -8 3004  IS0AAS OZ1SMB JO54
125600  -9 3004  9A6SJU OZ1SMB JO54 (x2)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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